:root{
  --dark-color:#19283f;
  --green-color:#33d1cc;
  --red-color: #ff3150;
  --yellow-color:#ffc400;
  --section-color: #eff7fa;
}
body {
  font-family: 'Roboto', sans-serif;
}
.main-btn{
  background-color:  var(--red-color);
  color:var(--yellow-color) ;
  padding:0.5rem 1rem ;
}
.main-btn:hover{
  background-color: var(--red-color);
  color: white;
}
.main-title::after{
  content: "";
  width: 120px;
  height: 2px;
  background-color:var(--green-color) ;
  position: absolute;
  bottom: -20px;
  left: 50% ;
  transform: translateX(-50%);
}
/* start-navbar */
.navbar{
  background-color: var(--dark-color);
}
.navbar .navbar-nav .nav-link{
  color: white;
}
.navbar .navbar-nav .nav-link.active,
.navbar .navbar-nav .nav-link:focus,
.navbar .navbar-nav .nav-link:hover{
  color: var(--green-color);
}
.navbar .search{
  border-left: 2px solid var(--green-color);
  color: var(--green-color);
}
.navbar .navbar-toggler{
  color: white;
  font-size: 25px;
  border-color: white;
}
.navbar .navbar-toggler:focus{
  box-shadow: none;
}
.navbar .navbar-toggler[aria-expanded="true"]{
  border-color: var(--green-color);
}
/* end-navbar */
/* start-landing  */
.landing{
  background-color: var(--dark-color);

  min-height: calc(100vh - 72px);
}
/* end-landing  */
/* start-features */
.features .icon-holder{
  height: 200px;
}
.features .icon-holder svg{
  left:50%;
  transform: translateX(-50%);
}
.features .icon-holder .number{
  font-size: 12rem;
  color: var(--section-color)
}
.features .icon-holder .icon {
  color: var(--green-color);

} 
.features .feat h4{
  color: var(--yellow-color);
}
/* end-features */
/* start-our-work  */
.our-work {
  background-color: var(--section-color);
}
.our-work ul .active{
  background-color: var(--red-color);
  color:var(--yellow-color) ;
}
.our-work ul li{
  padding: 0.5rem 1rem;
  cursor: pointer;
}
.our-work ul li:not(.active):hover{
  color: var(--red-color);
}
.our-work .box{
  padding: 5px;
  overflow: hidden;
  position: relative;
}
.our-work .box::before{
  content: attr(data-work);
  position: absolute;
  background-color: #19283fa4;
  width: calc(100% - 10px);
  height: calc(100% - 10px);
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: bold;
  color: white;
  transition: 0.4s;
  font-size: 1.5rem;
  transform: translateX(calc(-100% - 5px));
}
.our-work .box:hover:before{
  transform: translateX(0);
}
/* end-our-work  */
/* start-stuff  */
.stuff .description {
  max-width: 500px;
}
/* end-stuff  */
/* start-our-team  */
.team{
  background-color: var(--section-color);
}
.team h2{
  color: var(--yellow-color);
}
.team .box h4{
  background-color: var(--green-color);
}
/* end-our-team  */
/* start-project  */
.project{
  background-color: var(--dark-color);
}
/* end-project  */
/* start-subscribe  */
.subscribe{
  background-color: var(--yellow-color);
}
.subscribe input[type="text"]{
  border: none;
  border-bottom: 1px solid white;
  border-radius: 5px;
}
.subscribe input[type="text"]:focus{
  outline: none;
}
.subscribe  ::placeholder{
  color: white;
  font-size: 20px;
}
.subscribe input[type="submit"]{
  color: var(--yellow-color);
  background-color: var(--dark-color);
}
/* end-subscribe  */
/* start-footer */
.footer{
  background-color: var(--dark-color);
}
.footer .copyright > span{
  color: var(--green-color);
}
.footer .copyright div span{
  color: var(--yellow-color);
}
.footer .contact ul svg{
  width: 20px;
  height: 20px;
}
.footer .facebook{
  background-color: #1877f2;
}
.footer .twitter{
  background-color: #1da1f2;
}
.footer .linkedin{
  background-color: #0077b5;
}
.footer .youtube{
  background-color: #ff0000;
}
/* end-footer */